Generally yes. Sometimes you run into complications such as not enough space in the box to connect up the new wires coming in.
Original BX cable is not code compliant. Its spiral sheath is not a good and sufficient ground. Nowadays, most spiral wrapped cabling must have a straight grounding strip or wire running through it.
States can help recovery from hurricanes and tornadoes by not requiring due digence or prompt and timely correction of substandard conditions, and by providing continued liability insurance where companies drop homeowners.